Abstract：In order to find out the relationship between the method of seedling culture and root development,we presented two methods for seedling breeding,i.e.Seed-base and container.Based on the seedlings of Platycladus orientalis,Robinia pseudoacacia and 3Ulmus pumila in the experiment,we found out that because of the effect of root air-cutting,seed-base check the taproot growth of P.orientalis and U.pumila,and promote that of R.pseudoacacia.Seed-base can boost taproot growth towards the gravity direction,and appear a performance of vertical upgrowth taproot and sturdy and evenly distributed lateral root. On the other hand,taproot is not evident and root swirlling is serious in container seedling.P.orientalis and U.pumila seed-base seedling has a 181.8% and 128.6% greater number of first-order lateral root respectively than that of container seedling,and the diameter of first-order lateral root of U.pumila is also stimulated by seed-base.For all three species,first-order lateral roots of seed-base seedling distribute evenly in the four parts of 12,2-3,3-4 and 4-5 cm,however,that of of container seedling distribute only in the parts of 1-2 and 2-3 cm.Seed-base stimulate the number of first-order lateral root and ensure its even distribution,which will play an important role in enhancing the root absorbency and the soil conservation function.
杨喜田1；霍利娜1；赵宁1；朱红梅2；段玉玲3. 种基盘苗与营养钵苗根系生长和形态的差异[J]. 中国水土保持科学, 2009, 7(5): 48-51.
YANG Chi-Tian-；He-Li-Na-；Diao-Ning-；Shu-Gong-Mei-；Duan-Yu-Ling. Differences of root growth and morphology of seed-base seedling and container seedling. SSWCC, 2009, 7(5): 48-51.
2009, Vol. 7 
